5621907139 has 4 divisors (see below), whose sum is σ = 5629927680. Its totient is φ = 5613886600.

The previous prime is 5621907121. The next prime is 5621907173. The reversal of 5621907139 is 9317091265.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5621907139 - 2¹⁵ = 5621874371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5621907095 and 5621907104.

It is not an unprimeable number, because it can be changed into a prime (5621907439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4009219 + ... + 4010620.

It is an arithmetic number, because the mean of its divisors is an integer number (1407481920).

Almost surely, 2^5621907139 is an apocalyptic number.

5621907139 is a deficient number, since it is larger than the sum of its proper divisors (8020541).

5621907139 is an equidigital number, since it uses as much as digits as its factorization.

5621907139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8020540.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 5621907139 is about 74979.3780915793. The cubic root of 5621907139 is about 1778.1206376238.

The spelling of 5621907139 in words is "five billion, six hundred twenty-one million, nine hundred seven thousand, one hundred thirty-nine".